This PWAD is designed specifically for DEATHMATCH. Although you can play single player and co-operatively.

The basic design of the level is an arena with four staircases going of it. Then another two staircases and a lift at the end of each of the first stairs. Basically this level is excellent for deathmatch. There are places good for chases, places for hiding (and ambushing!). Set to respawning monsters on deathmatch for best effect. This is because there 8 rooms on the outskirts of the three main arenas each with 1 or 2 baddies in. In these rooms are power-ups and weapons. With the better power-ups guarded by better monsters. Having respawning monsters prevents it being easy to go straight for the best weapons.